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    <h1>JS类型</h1><hr>
    
    <script>
         var a = 'abcdef';
        var a = 10;
        var a = 10.99;
        var a = true;
        var a = false;

        var a = new Object();
        var a = new Array(1,561,61,961);

        var a = null;
        var a = undefined;
        var a = function (){
            alert('66666666666');
        }

        // a();

       console.log(a);
       // console.log(typeof(a));
       console.log(typeof a);       
    </script>

    
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